this post was submitted on 14 Mar 2025
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Explain Like I'm Five

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Can my apartment become moldy if I don't live in it? I don't understand the whole negative air pressure thing (lemmy.world)
submitted 1 day ago* (last edited 1 day ago) by jlyndby@lemmy.world to c/explainlikeimfive@lemmy.world
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Is it bad if my apartment doesn't get any drafts in it? I want to block the front door gap, but my dad got mad and said this would cause mold issues.

How and why? I mean I don't live there so why would it become humid?

It's not really an option to keep it open cause I'm allergic to some of the stuff that comes in from the neighbours

Follow up question: is it true that turning the bathroom fan on won't do anything, if there isn't somewhere outside the apartment that air can be drawn from?

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[–] constnt@lemmy.world 4 points 1 day ago (4 children)

Apartments and houses are designed for air flow. You don't need a gap in your door to prevent mold. Mold will grow despite that if you live in a city that has high humidity.

Everyone should watch for mold. Check around windows. Behind the toilet tank. Above and around the shower. Wipe with bleach often.

You can also get a dehumidifier if it becomes a problem

[–] AmbiguousProps@lemmy.today 4 points 1 day ago (1 children)

Bleach doesn't kill mold, and actually causes it to release spores. Use concrobium (or a similar product) to properly kill it.

[–] jlyndby@lemmy.world 2 points 1 day ago

I've heard vinegar is better at killing mold than bleach

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